Researchers have found that ZBP1 is activated by Z-form nucleic acids in the absence of viral infection, leading to cell death and inflammation. Endogenous retroelements may be a source of these nucleic acids, triggering this mechanism in humans.
Researchers found that autophagy is dispensable for neuron survival but regulates axonal transport of molecules crucial for learning and memory. The study suggests that modulating autophagy activity may improve cognitive abilities by altering intracellular transportation systems.
A new study found that media coverage of corporate misconduct is not impartial, with popular companies and foreign brands receiving more attention. The study suggests that liberal media report more frequently on cases of corporate social irresponsibility than conservative media.
Scientists from the University of Cologne found that water, carbon, and nitrogen were delivered to Earth very late in its history, contradicting previous assumptions. The researchers used rare platinum metal isotope abundances to constrain the delivery time, suggesting a late veneer phase around 3.8 billion years ago.
Insects can perform numerical estimation and compare sets of objects, recognizing larger quantities. Researchers found a simple model for neural networks to learn numerical cognition tasks using a single neuron.
The SEIS seismometer has measured over 174 probable 'Mars quakes', providing valuable data on the planet's composition. The analysis indicates a layer of rock 10 kilometres thick, with waves spreading at relatively slow speeds, suggesting fissured or chemically altered rock.
Complex systems, like social networks and avalanches, exhibit similar characteristics when left to develop on their own. In a groundbreaking experiment, researchers from the University of Cologne observed self-organized criticality in a gas of potassium atoms, demonstrating universal avalanche behavior.
Certain bacteria, such as Shigella, use lipopolysaccharides to block caspases and prevent apoptosis, allowing them to multiply intracellularly. This strategy is essential for their survival and spread within the human body.
Researchers found identical structures in horseshoe crab and ancient sea scorpion eyes, suggesting contrast enhancement evolved over 400 million years. The findings shed light on the evolution of compound eyes in arthropods.
A new study reveals that caspase-8 controls multiple cell death mechanisms, including pyroptosis, apoptosis, and necroptosis. The research found that the enzymatic activity of caspase-8 is required to inhibit pyroptosis, while inactive caspase-8 induces pyroptosis when necroptosis is blocked.
A new mechanism has been discovered for the development of Parkinson's disease, which could lead to a more targeted therapy. Researchers have found that excessive calcium influx through specific ion channels, Cav2.3 channels, contribute significantly to the disease.
Researchers found that Iranian populations, such as Persians and Kurds, display high in-group genetic variation. However, the entire gene pool has remained largely unchanged over at least 5,000 years. This discovery sheds light on past migration movements and provides valuable data for studying genetic diseases.
A study by the University of Cologne found that expert feedback significantly reduces the length of antibiotic therapies and improves treatment decisions among pediatricians. The experiment showed that providing feedback can be a useful means to address excessive antibiotic use.
The Lake Ohrid drilling project has provided a unique window into the region's climate history, revealing significant increases in winter precipitation and shedding light on the causes of rain phases. The findings offer valuable data for assessing the effects of climate change and comparing with models.
Researchers discovered that Par3 regulates contractility of keratinocytes, essential for accurate cell division and preventing DNA damage. The findings suggest that Par3 plays a key role in maintaining skin self-renewal capacity, with dysfunction linked to premature aging and skin cancer.
Scientists have recalculated the Moon's age to approximately 50 million years after solar system formation, based on hafnium-tungsten systematics from Apollo samples. This new estimate significantly differs from earlier research findings and sheds light on planetary evolution.
A mutant worm with a change in one mitochondrial gene produces more ROS, but lives twice as long due to a detoxification pathway. The study reveals that this pathway is conserved throughout the animal kingdom and essential for longevity.
Researchers at the University of Cologne have found that somatic niche cells surrounding primordial germ cells (PGCs) control their response to DNA damage. This discovery sheds new light on how PGCs maintain genome integrity, potentially improving understanding of inheritance and infertility.
Researchers measured Jupiter's electric current system and found that alternating currents play a crucial role in generating the aurora. The study used data from NASA's Juno spacecraft to derive electric currents and found a total of approximately 50 million amperes, significantly lower than expected values.
Researchers have identified a new mechanism for how plants perceive RALF23 peptides, a key player in regulating important plant processes. The discovery sheds light on how plants respond to internal and external cues, with potential implications for understanding immune defense and development.
A research team from the University of Cologne has recalculated the distribution of volatile elements on Earth, finding that some building blocks have a chemical composition similar to primitive meteorites. The study suggests an alternative source for vital components such as water and carbon.
Research on Drosophila reveals that Ets21c promotes intestinal epithelial renewal, but its loss accelerates tissue turnover and makes flies vulnerable to stress. The study contributes to understanding regenerative processes under favourable and stressful conditions.
Researchers at University of Cologne and Bonn developed a method to visualize fine surface structures using gold-coated samples in computer tomography. This technique allows for detailed analysis of organisms with previously invisible features, with applications in biology, taxonomy, and education.
Researchers at University of Cologne create one-dimensional wire to witness behavior of trapped electrons. They discover two sets of standing waves, representing spin density and charge density waves, a phenomenon predicted by Tomonaga-Luttinger liquid theory.
A newly discovered mechanism in plant nutrition could help achieve higher harvests in a sustainable way. The study found that the balance between nitrogen and phosphorus is crucial for crop yield, with nitrogen controlling phosphate absorption.
Researchers at University of Cologne decipher mechanism by which intestinal microbiota amplifies inflammatory reactions in lungs. Candida albicans stimulates Th17 cells, leading to cross-reactivity and immune system imbalance.
Researchers found that food odors impact protein degradation and cell recycling, leading to shorter lifespans. The study used Caenorhabditis elegans, a roundworm model organism, to uncover the role of olfactory neurons and microRNA molecule mir-71 in regulating digestive processes.
A research team at the University of Cologne has successfully performed a variant of the double-slit experiment using resonant inelastic X-ray scattering. The experiment provided valuable information about the dynamic physical properties of solids and proved a fundamental theoretical prediction from 1994.
Researchers found that small limbs like insect legs can execute fast movements without central nervous system control, thanks to dynamic passive forces generated by the flexor muscle. These findings contradict previous notions of how small limbs move quickly and highlight the importance of active-muscle and opponent interactions.
Stellar winds from infant stars in the Orion Nebula disrupt the formation of new stars by blowing away seed material. The winds create a bubble that regulates physical conditions and influences star formation activity.
Researchers developed a novel immunochromatographic method to detect multi-resistant bacteria in blood cultures with 100% certainty. The new method reduces testing time from up to 72 hours, enabling faster treatment and potentially curbing the spread of resistant pathogens.
A recent study reveals that people tend to compare themselves more strongly in situations of social tightness, such as job interviews, or collective, interdependent social situations. The researchers found a link between cultural tightness, interdependence, and social comparison across individuals, situations, and cultures.
A study by Dr. Tom Weihmann shows that body dynamics depend strongly on the number of propulsive legs, with increasing leg numbers impeding energy recovery. This discovery could explain quadrupedal animals adopting bipedalism and potentially inform control mechanisms for fast-running robots.
A new study from the University of Cologne found that market share has limited influence on a company's financial performance. Instead, customer relationships and brand equity deliver six times the effect and three times the effect of market share gains alone.
Researchers suggest a system that charges drivers based on traffic volume, improving flow and reducing pollution. The proposed dynamic fee aims to make roads more efficient and equitable for all users.
A new system has been identified that could reduce neurodegeneration in Huntington's disease by blocking the accumulation of toxic protein aggregates. The system involves a protein called UBR5, which promotes the degradation of mutant huntingtin, leading to a decrease in neurotoxic effects.
A recent study by University of Cologne researchers found that religiosity plays a significant role in the educational success of Muslim and Christian immigrant children. Regular prayer and engagement in mosques are linked to better school performance, particularly in non-segregated neighborhoods.
Manolis Pasparakis, a professor at the University of Cologne, has received a 2.5 million euro ERC Advanced Grant to investigate the role of necroptosis in chronic inflammatory and autoimmune diseases. His research focuses on the mechanisms regulating inflammation.
Human embryonic stem cells are immortal due to a 'garbage disposal system' called the proteasome. Reducing E3-ubiquitin ligases levels does not affect their behavior, but impacts overall cell function.
A new study finds that nostalgia for America's past can buffer collective guilt and create group coherence. Those who glorify the US tend to be more nostalgic, which alleviates feelings of guilt about historical wrongs.
The protein 'smallish' plays a crucial role in regulating cell polarity, essential for shape generation and coordinated cell changes. Researchers found that smallish helps control the correct shape of cells, even when knocked out, due to stored proteins in egg cells.
Researchers studied fast cockroach locomotion to develop more energy-efficient robot movement. At high speeds, cockroaches adapt their gait by reducing leg coordination, allowing for stable movement on slippery surfaces. This discovery could help robots achieve better endurance and cross-country mobility.
Researchers discovered the structure and functioning of a half-billion-year-old fossil trilobite's compound eye, showing similarities with modern compound eyes. The ancient eye consists of 100 subunits with eight sensory cells each, but lacks a lens, suggesting its development may have predated modern forms.
A team of researchers has found an efficient way to produce neurons from pluripotent stem cells by knocking down a single gene. This approach enables 100% efficient neuron production and could facilitate the study of neurodegenerative diseases.
The study found that the EGF receptor is crucial for tight junction barrier formation in the epidermis, a process previously understood to be limited to lower layers of the skin. Mechanobiology also plays a role, with cells sensing pressure and tension through connections between each other.
Researchers have discovered Freon-40, an organohalogen, around two celestial objects: an infant star and a comet. The finding suggests that these molecules may form readily in stellar nurseries, providing insights into the chemical evolution of planetary systems.
Researchers at Cologne University Hospital have discovered a novel inhibitor that specifically targets NMC tumours, a rare and lethal form of cancer. The study's findings provide valuable insights into the molecular mechanism responsible for the effectiveness of the inhibitor, paving the way for new and improved therapies.
DNA damage accelerates aging in nematode worms, showing surprising similarities with aged humans. The study reveals comprehensive connections between metabolism, DNA preservation, and signaling pathways.
Participants showed higher levels of cooperation for provision of new public goods, with a majority exhibiting conditional cooperation. In contrast, those who never participated in maintenance or provision faced dilemmas about public goods, leading to lower willingness to cooperate.
Researchers from an international collaboration have analyzed data from the Venus Express spacecraft to investigate Venus's complex atmosphere. They found that stationary gravity waves at higher altitudes are related to surface elevations, suggesting wind currents caused by topographical obstacles contribute to the planet's superrotation.